Shotgun rib



Patented Feb. 26, i924.

UNITED STATES JOHN F. BERGER, 0F TRENTON, NEW JERSEY.

sHoTGUN are.'

Application filed April 21, 1923. Serial No. 633,738.

To all whom it may concern Be it known that I, JoHN F. BERGER, a citizen of the United States, residing at. Trenton, in the county of Mercer and State of New Jersey, `have invented certain new and'useful Improvements in a Shotgun Bib, of which the following is a. specification.

The present invention relates to a shot gun rib and has for its principal object to provide a device which is easily manipulated ,on a shot gun so that the user thereof may rib which will be simple and efficient in con.

struction, reliable, inexpensive, durable, and well adapted to the purpose for which it is designed. i Y

IVith the above and numerous other objects in view as will appear as the description progresses, the invention resides in certain novel features of construction and in the combination and arrangement of parts as will be hereinafter more fully described and claimed.

In the drawing- Y Figure l is a fragmentary side elevation of a shot gun embodying my invention.

Figure 2 is a fragmentary enlarged elevation of the barrel thereof, and

Figure-s 3' and 4 are transverse sections taken substantially Son the lines 3-3 and 4.-4 of Figure 2 respectively.

Referring to the drawing in detail it will be seen that the barrel l o-f the shot gun may be of conventional co-nstruction or any other preferred construction exceptthat itA is provided with a series of lugs 2 which are arranged 1n spaced pairs. A rib 3 which .is substantially T-shaped in cross section has its lower portion pivoted to the pair of lugs 2 adyacent the breech end of the barrel.

This portion of the rib 3 is slotted transversely adjacent the pair of lugs 2 at thev muzzleend 0f the barrel 1. One edge of -this slot 5 is provided with a series of teeth 6.

A shaft 7 is iournaled in one of the lugs 2 disposed a pinion 9 engaged with the teeth 6. The outer end of the shaft 7 is provided with a gnarled knob l0 whereby the shaft Vmay be. rotated for elevating or lowering the forward end of the rib 3. As is disclosed to advantage in vFigure 3 the intermediate lugs 2 are provided with thumb screws 12 which may be brought into binding engagement with the lower' portion of the rib 3 thus locking the rib securely in place.

The construction and operation of the device should be now clearly understood without a more detailed description thereof. I have, in the present instance, shown and described the preferred embodiment of the device which will give in practice satisfactory and reliable results, and it is to be understood that the same is susceptible of modification in various particulars without departing from the spirit or scope of the invention or sacrificing any of its advantages.

Having thus described my invention what I claim as new is l. In combination, a gun barrel, a rib extending longitudinally with the barrel and pivoted to the breech end thereof, and'means at the muzzle end of the barrel for raising and lowering the muzzle end of the. rib in the manner and for the purpose specified.

2. In combination, a gun barrel, a plurality of guide lugs on the gun barrel, a sight rib extending longitudinally of the gun barrel, and pivoted to `the lugs adjacent the breech end thereof, a shaft rotatable in the lugs at the muzzle end of the barrel, a pinion on said shaft, a slot in the rib for receiving the pinion on said shaft, said Slot being provided with teeth enga-ging said pinion whereby said shaft may be rotated for raising or lowering the muzzle end of the rib in the manner and for the purpose specified.

In testimony whereof I affix my signature in presence of two witnesses.

JOHN F. BERGER.

Witnesses FRANK PUYLInsn, J Aeon GAREY. 

